铝合金压铸工艺70447.docVIP

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2017-09-10 发布于江苏
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铝合金压铸工艺70447.doc

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目录绪论·····························································1 第一章概述····················································2 1.1 压铸工艺概述···············································2 1.11压铸工艺原理···············································3 1.12压铸工艺的特点·············································5 1.13压铸工艺的应用范围·········································6 第二章压铸合金···············································7 2.1 压铸合金···················································7 2.11对压铸合金的基本要求······································8 2.12各类压铸铝合金·············································9 第三章压铸件的结构设计······································13 3.1功能结构设计···············································13 3.11压铸件的尺寸精度及加工余量································14 3.12压铸件的表面质量··········································15 第四章压铸工艺··············································16 4.1 压力·····················································16 4.11压射压力··················································16 4.12 胀模力···················································18 4.2 速度·····················································19 4.21压射速度··················································19 4.22内浇口速度················································20 4.23内浇口速度与压射速度和压力的关系··························21 4.3 温度·····················································22 4.31合金浇注温度··············································22 4.32内浇口速度对合金温度的影响································23 4.33压铸模的温度··············································24 4.4 时间·····················································24 4.41填充时间和增压建压时间····································24 4.42持压时间和留模时间········································25 4.5 压铸涂料·················································26 4.51压铸涂料的作用和压铸涂料的要求····························26 4.52压铸涂料的使用············································27 第五章影响铝合金压铸模寿命的因素····························28 5.1模具结构设计的影响·········································28 5.2热处理工艺的影响···················